Writing instrument and base



FIG. 1 is a perspective view of the top, front and left side of a writing instrument and base, showing my new design (the elements shown in broken lines are for illustrative purposes only and form no part of the claimed design);

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a writing instrument and base, as shown and described. 